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Preamplifier
Electronic amplifier that converts weak signal into strong signal / From Wikipedia, the free encyclopedia
"Preamp" redirects here. For the device used in professional audio, see Microphone preamplifier.
A preamplifier, also known as a preamp, is an electronic amplifier that converts a weak electrical signal into an output signal strong enough to be noise-tolerant and strong enough for further processing, or for sending to a power amplifier and a loudspeaker.[1] Without this, the final signal would be noisy or distorted. They are typically used to amplify signals from analog sensors such as microphones and pickups.[2] Because of this, the preamplifier is often placed close to the sensor to reduce the effects of noise and interference.
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